16231232003 has 4 divisors (see below), whose sum is σ = 18549979440. Its totient is φ = 13912484568.

The previous prime is 16231231957. The next prime is 16231232023. The reversal of 16231232003 is 30023213261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30023213261 = 19 ⋅1580169119.

It is a cyclic number.

It is not a de Polignac number, because 16231232003 - 2¹⁴ = 16231215619 is a prime.

It is a super-2 number, since 2×16231232003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16231232003.

It is not an unprimeable number, because it can be changed into a prime (16231232023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159373708 + ... + 1159373721.

It is an arithmetic number, because the mean of its divisors is an integer number (4637494860).

Almost surely, 2^16231232003 is an apocalyptic number.

16231232003 is a deficient number, since it is larger than the sum of its proper divisors (2318747437).

16231232003 is an equidigital number, since it uses as much as digits as its factorization.

16231232003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318747436.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 16231232003 its reverse (30023213261), we get a palindrome (46254445264).

The spelling of 16231232003 in words is "sixteen billion, two hundred thirty-one million, two hundred thirty-two thousand, three".